Bullard, John R. <br/><br/>
Audiovisual fundamentals :  basic equipment operation, simple materials production / 
John R. Bullard, Calvin E. Mether. 
 - Dubuque, Iowa:   W. C. Brown,   1974.  
 - ix, 150 p. :  ill. ;  21 x 28 cm. 
<br/><br/><label>ISBN: </label>0697060438 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual equipment
<br/><br/><label>Dewey Class. No.: </label>621.3897